Trouble shooting 23
Abnormal Noise
Forecast of Cause :
1.Abnormal installation (Indoor/ Outdoor)
2.Fan failure (Indoor/ Outdoor)
3.Compressor failure (Outdoor)
Diagnosis method when abnormal noise is occurred
Abnormal noise is coming from Indoor unit. (Check and correct followings)
Is Main unit installed in stable condition? 
Is the installation of air suction grille and front panel normal?
OK
Is Fan broken or deformed?
Is the screw of Fan loose?
Is there any object which obstruct the Fan rotation?
Abnormal noise is coming from Outdoor unit. (Check and correct followings)
Is Main unit installed in stable condition? 
Is Fan guard installed normally?
OK
Is Fan broken or deformed?
Is the screw of Fan loose?
Is there any object which obstruct the Fan rotation?
OK
Check if vibration noise by loose bolt or contact noise of piping is happening.
OK
Is Compressor locked?
>> Check Compressor (PARTS INFORMATION 1,2)
Trouble shooting 24
Water Leaking
Forecast of Cause:
1. Erroneous installation 2. Drain hose failure
Diagnosis method when water leak occurs
Diagnosis method when water is spitting out.
Is Main unit installed in stable condition?
Is Main unit broken or deformed at the time of transportation or maintenance?
OK
Is Drain hose connection loose?
Is there a trap in Drain hose?
Is Drain hose clogged?
OK
Is Fan rotating?
Is the filter clogged?
OK
Check Gas pressure and correct it if there was a gas leak.
MPa MPa
